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Finding the Fourth Proportional to 88,452.41, 121,377.79 and 80,433.41

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Solution

The fourth proportional to 88,452.41, 121,377.79 and 80,433.41 is: 110,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,452.41 : 121,377.79 = 80,433.41 : x
  2. Step 2: Convert to fraction form
    88,452.41/121,377.79 = 80,433.41/x
  3. Step 3: Cross multiply
    88,452.41x = 121,377.79 × 80,433.41
  4. Step 4: Simplify right side
    88,452.41x = 9,762,829,041.62
  5. Step 5: Solve for x
    x = 9,762,829,041.62/88,452.41
  6. Step 6: Final answer
    x = 110,373.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.